Perfil de resistência de estirpes de Salmonella heidelberg isoladas de fonte avícola.

Abstract

Bacteria of the genus salmonella spp. are responsible for 80.3 million food-borne diseases infections, the main serotypes involved are: S. Enteritidis (SE), S. Typhimurium (STM) and S. Heidelberg (SH). These cases occur due to the consumption of raw or half boiled eggs, or the handling of contaminated chicken carcasses, where may occur cross-contamination with vegetables, cooking utensils, etc. These bacteria usually spread very quickly across the roster and, aiming to prevent bird growth from being compromised, growers make use of antibiotics as growth promoters. Its indiscriminate use is causing the emergence of multiresistant strains. The objective of this work was to characterize, antibacterial susceptibility with antibiograms with twenty strains of Salmonella enteric serotype (Heidelberg’s serotypes) isolated from chicken carcasses and human samples. The following antimicrobials were tested: amoxicillin with clavulanate, aztreonam, cephalothin, cefepime, ceftazidime, cefoxitin, cefotaxime, chloramphenicol, gentamicina, nalidixic acid, norfloxacin, tetracycline and sulfametaxazole with trimethoprim. Where nalidixic acid was the least effective at presenting 55% resistance, followed by amoxicillin with clavulanate 40%, cephalotin with 25%, gentamicin and cefotaxime with 15%, tetracycline, cefotaxime and ceftazidime with 10%, norfloxacin and chloramphenicol with 5% and sulfamethoxazole with trimetoprim, aztreonam and cefepime with 100% of sensitive strains. Concluding that the use of antibacterials in poultry production causes serious damage in public health, even though it is prohibited by the Ministry of Livestock and Food Supply.